izlaidumi no John M. Keller

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Cover for John M. Keller · Motivational Design for Learning and Performance: The ARCS Model Approach (Paperback Book) (2010)

Motivational Design for Learning... (2010)

Cover for John M. Keller · Motivational Design for Learning and Performance: The ARCS Model Approach (Hardcover Book) (2009)

Motivational Design for Learning... (2009)